Valve seat for faucets



SePt- 5,. 1939. M. A. SMITH VALVE SEAT FOR` FAUcETs Filed Feb. 23, 1957 .a n ,A V VA Patented Sept. 5, 1939 intr-rizol STATES ATENT- "FFHCE 1 Claim.

This invention relates to an improved valve seat for faucets and seeks, among other objects, to provide a device of this character which may be readily removed so that repair and replacement thereof may be effected with the utmost facility. Y

Another object of the invention is to provide a valve seatwhich will be formed of a pair of sections so that it may be easily removed from the faucet and y-et will fit snugly in said faucet in operative position, one section of the seat being formed with a squared opening and a substantially straight wall to permit ready removal through either the top or bottom of the faucet by a suitable tool.

And a further object of the invention is to provide a valve seat which will be simple in construction and easy-toy install. c

Other and incidental objects of the invention, not specifically' mentioned hereinabove, will render themselves apparent as the description of said invention proceeds.

My improved valve seat is illustrated in the accompanying drawing wherein:

Figure 1 is a vertical sectional View of a faucet with my improved valve seat in operative position therein.

Figure 2 is a detail perspective view of the valve seat, showing the sections in position but not being screwed together.

Figure 3 is a vertical sectional view showing a slight modication of the invention.

Referring now more particularly to the figures of the accompanying drawing, wherein like numerals will be seen to designate like parts throughout said figures, the numeral I indicates, in general, a faucet which is provided with a body 2 having the usual discharge pipe 3 and neck or lower portion 4 which is externally threaded throughout its length. 'Ihe faucet is provided with a conventional handle 5 and stem 6 which terminates at its lower end within the body with a Valve l, which valve is preferably screwed in place in the lower end of the stem 6. The

' faucet is adapted to be secured in any desired position and is shown mounted on a portion 'la of a conventional wash basin. A packing washer 'lb surrounds the lower portion 4 adjacent the lower surface of the portion Ia and is secured in place by a clamping nut 7c which cooperates with a iiange ld on the faucet at the upper side of the portion 'la for securing the faucet in place.

In carrying the invention into effect, I employ a valve seat which is indicated in general by the numeral 8 and includes an upper section 9 provided with a substantially straight outer wall I8. The section 9 is reduced at its lower end portion to define an externally threaded portion II and said section 9 is further provided, at its upper end portion, with a seat I2 adapted 5 to be engaged by the valve I in closed position foi` lcutting off flow of liquid through the valve seat 3 to the discharge pipe 3. The section 9 is provided at a point'slightly beneath the seat I2 with a squared opening I3 which is adapted 10V for engagement by a suitable tool for permitting removal of the section in a manner to be presently described. The valve seat is provided with a lower portion I4 which is formed with a substan- A coupling 20 is screwed on the externally thread- 25 ed lower portion 4 of the faucet I and aids in retaining the packing in place so that the inflow pipe will be effectively connected with the faucet. Attention is called to the fact that, inasmuch as the outer wall I5 is slightly upwardly tapered, 30 it will be permitted to seat tightly on the lower portion 4.

The device is shown in proper operative position in Figure 1 of the drawing and is placed in that position either by screwing the sections 9 and tl together and inserting the entire valve seat. upwardly through the lower portion 4 ofthe faucet I, or the upper section 9 may be inserted, after removal of the handle 5 and stem 6, through the top of the faucet and into the lower section which is inserted from the bottom upwardly in the lower portion 4. The sections are tightly screwed together and the frusto-conical wall I5 of the section I4 will engage snugly against the inner surface of the portion 4 so that my improved valve seat will be properly centered in the lower portion and the seat I2 will be disposed in position for engagement by the valve 'I. 'I'he upper end portion I8 of the pipe I9 is inserted in the opening Il. Packing is inserted and the coupling 28 screwed on the lower end of the portion 4 sol that the inflow pipe will be securely mounted in the faucet I and the valve seat also effectively positioned in said faucet. It will be understood that rotation of the handle 5 will ef- 65 iectually engage the valve 1 with the valve seat I2 for controlling flow of liquid through the faucet. The squared opening I3 will permit ready engagement of a suitable tool for permitting removal of the section 9 when wear on the seat l2, necessitating repair or replacement of said seat, has taken place. It is particularly pointed out that, as the section 9 may beremoved through the top of the faucet, it will not be necesl sary to disconnect the inflow pipe i9 from the faucet. Moreover, if it should be desired to remove the seat from the faucet without removing the handle 5 and stem 6, said seat may be readily displaced from the faucet by merely disconnecting the coupling 20, removing the packing, and disengaging the upper end portion I8 of the pipe I9 from the opening Il. It is believed that it will be understood that I have provided a simple and highly efcient valve seat which will permit quick installation in faucets so that a great saving of liquids which would otherwise be lost by faulty and leaking valve seats, will be eected.

In the modification of the invention shown in Figur@ 3 of the drawing, the numeral 2l indicates a valve seat which includes a relatively large lower section 22 tapered upwardly throughout its length so that it will assume a substantially i'rusto-conical contour. The section 22 is prog vided with an enlarged beveled opening 23 at its lower end portion and said section is formed with a reduced externally threaded upper end portion The upper end portion 24 is adapted to removably receive a valve seat section 25 which has a seat 26 thereon. At a point beneath the seat 2li there is disposed a squared opening 21 which is adapted for engagement by a suitable tool so that the valve seat section may be unscrewed from the externally threaded upper end portion 24 of the section 22, it being understood that the valve seat section is formed at its lower end portion with internal threads 28. The valve seat section 22 of this form of the invention is adapted to be tted into the bottom of the lower portion 4 of the faucet l and is adapted to receive therein the upper end portion VI8 of the inilow pipe I9. Packing and the coupling 20 Will serve to retain this form of the invention in place in the faucet. The section 22 may not be removed through the top of the faucet but it will be clearly seen that the valve seat section 25 may be removed in this manner. The operation of this form of the invention is identical with that of the preferred form aside from the above noted features.

Having thus described the invention, what I claim is:

In combination with a faucet having a body and an externally threaded lower inlet portion, a valve seat including companion upper and lower sections to be disposed in said lower inlet portion, said faucet having an opening in its top opposite said inlet through which the upper sectio-n of the seat may be removed, a valve stem and disk mounted in said opening, said upper section having a substantially cylindrical outer wall having an external diameter small enough to permit removal in either direction fro-msaid lower portion and having a seat face at its upper end to be engaged by the valve disk for controlling fluid flow through the faucet, said lower section being provided with an enlarged frustoconical outer wall for cooperation with a complemental inner wall of the inlet and adapted for receiving an inflow pipe, and a coupling screwed on the lower portion of the faucet and cooperating with packing for retaining the inow pipe in position in said enlarged lower end section.

MACE A. SMITH. 

